XOOMAR

Flowserve (FLS)

Flowserve on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as pumps & pumping equipment.

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9.0M

Short interest

settlement 2026-09-30

5.6

Days to cover

+1.0 days vs prior

57.5%

Short share of volume

2026-10-12

847

Fails to deliver

settlement 2026-09-11

Tue 27 Oct

Next earnings

estimated date

$0

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-12.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in FLS is 9,048,534 shares, up 1,068,519 shares over the last month. Over the last 48 readings it ranged from 1,373,311 shares (15 November 2024) to 10,750,534 shares (30 June 2026). At the reported average volume of 1.6M shares a day that is 5.6 days to cover.

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SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-309,048,534+14.2%1,607,6405.63
2026-09-157,922,558-0.7%1,698,7954.66
2026-08-317,980,015+4.0%1,475,6725.41
2026-08-147,669,170-4.9%1,482,7995.17
2026-07-318,065,766-13.9%2,245,7053.59
2026-07-159,368,645-12.8%1,623,6075.77
2026-06-3010,750,534+0.8%2,401,3654.48
2026-06-1510,667,035+12.0%1,631,0866.54
2026-05-299,527,826+23.8%2,493,1223.82
2026-05-157,695,887+30.0%2,985,8302.58
2026-04-305,920,989+23.8%3,113,0751.90
2026-04-154,783,781+19.5%1,924,3332.49
2026-03-314,003,484+36.2%1,755,5132.28
2026-03-132,939,034-8.2%1,704,0291.72
2026-02-273,202,841-11.7%1,422,6222.25
2026-02-133,625,132+2.2%2,125,2071.71
2026-01-303,546,427+2.2%1,178,5403.01
2026-01-153,469,970+7.5%1,240,0532.80
2025-12-313,227,376-13.5%874,2653.69
2025-12-153,731,726-13.4%1,464,7962.55
2025-11-284,310,742-4.0%1,479,1342.91
2025-11-144,492,202-20.0%1,924,0592.33
2025-10-315,616,345-10.8%2,869,3561.96
2025-10-156,298,374+14.7%1,857,6253.39

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of FLS volume is 57.5%, down 7.4 points over the last five sessions. Over the last 30 readings it ranged from 49.9% (1 September 2026) to 84.5% (15 September 2026). The latest reading is 8.5 points below the 30-session average of 66.0%, on 596K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-12342K596K57.5%35,631
2026-10-09406K710K57.2%33
2026-10-08514K928K55.4%7,436
2026-10-07717K1.1M63.5%7,178
2026-10-06723K1.2M60.2%5,958
2026-10-05400K616K64.9%174
2026-10-02233K430K54.1%1,661
2026-10-01296K515K57.5%5
2026-09-30372K501K74.2%0
2026-09-29210K329K63.8%400
2026-09-28295K418K70.5%0
2026-09-25551K884K62.3%78
2026-09-24619K802K77.2%802
2026-09-23381K669K56.9%0
2026-09-22383K460K83.2%0
2026-09-21452K650K69.7%0
2026-09-18463K637K72.7%0
2026-09-17418K499K83.8%1,501
2026-09-16677K922K73.5%335
2026-09-15478K566K84.5%3
2026-09-14496K711K69.8%20
2026-09-11191K335K57.1%0
2026-09-10403K676K59.7%205
2026-09-09587K694K84.5%1
2026-09-08492K730K67.5%10
2026-09-04592K929K63.7%327
2026-09-03438K610K71.9%125
2026-09-02337K618K54.6%1,049
2026-09-01611K1.2M49.9%46,875
2026-08-31369K638K57.9%52,458

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 11 September 2026, the fails-to-deliver balance in FLS is 847 shares, down 78,689 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (29 June 2026) to 87,614 shares (10 June 2026). The latest reading sits at the bottom of that range.

SettlementShares failedPriceValue
2026-09-11847$72.83$62K
2026-09-1079,536$75.19$6.0M
2026-09-034,774$77.74$371K
2026-09-01170$79.09$13K
2026-08-28110$82.00$9K
2026-08-2552$80.46$4K
2026-08-213,059$78.10$239K
2026-08-182,352$80.97$190K
2026-08-13601$80.95$49K
2026-08-124,372$80.86$354K
2026-08-073$78.64$236
2026-08-062$78.67$157
2026-08-054,340$79.55$345K
2026-07-169,518$68.89$656K
2026-07-15371$69.59$26K
2026-07-1317$70.48$1K
2026-07-0720,232$74.71$1.5M
2026-07-0252,277$72.38$3.8M
2026-06-3037,898$73.26$2.8M
2026-06-291$72.56$73
2026-06-2551,057$72.93$3.7M
2026-06-22268$81.70$22K
2026-06-181,790$78.93$141K
2026-06-152,688$78.07$210K
2026-06-1215,174$78.10$1.2M
2026-06-1087,614$75.97$6.7M
2026-06-09264$74.86$20K
2026-06-08262$73.50$19K
2026-06-023,054$75.08$229K
2026-05-291,559$75.21$117K

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

No open-market insider trades were reported for FLS in the last 90 days. The most recent filings are listed below. Latest filing: Hudson Susan Claire (Chief Legal Officer) on 2026-10-01.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-10-01Hudson Susan ClaireChief Legal OfficerGrant33$73.12$2K25K
2026-09-23Klopfer Matthew CarlPresident, FPDTax withholding1K$74.67$90K9K
2026-09-23Klopfer Matthew CarlPresident, FPDOption exercise3K$0.00$010K
2026-09-01Hudson Susan ClaireChief Legal OfficerGrant31$79.09$2K25K
2026-08-03Hudson Susan ClaireChief Legal OfficerGrant48$75.99$4K25K
2026-07-01Rowe Robert ScottPresident & CEOGrant60$74.16$4K508K
2026-07-01Hudson Susan ClaireChief Legal OfficerGrant33$74.16$2K25K
2026-06-16Boukalik BrianChief Human Resources OfficerTax withholding171$78.07$13K4K
2026-06-16Boukalik BrianChief Human Resources OfficerOption exercise701$0.00$04K
2026-06-01Rowe Robert ScottPresident & CEOGrant58$75.51$4K508K
2026-06-01Hudson Susan ClaireChief Legal OfficerGrant32$75.51$2K25K
2026-05-18McMurray Michael C.DirectorBuy3K$65.71$164K8K
2026-05-14Savoy Brian DDirectorGrant3K$67.99$175K4K
2026-05-14Savoy Brian DDirectorBuy1K$67.34$67K1K
2026-05-14McMurray Michael C.DirectorGrant3K$67.99$175K6K
2026-05-14Okray Thomas BDirectorGrant3K$67.99$175K13K
2026-05-01Hudson Susan ClaireChief Legal OfficerGrant33$73.64$2K25K
2026-05-01Rowe Robert ScottPresident & CEOGrant60$73.64$4K508K
2026-04-01Hudson Susan ClaireChief Legal OfficerGrant31$73.51$2K25K
2026-04-01Rowe Robert ScottPresident & CEOGrant61$73.51$4K508K
2026-03-02Rowe Robert ScottPresident & CEOGrant50$88.52$4K508K
2026-03-02Rowe Robert ScottPresident & CEOTax withholding7K$88.52$595K508K
2026-03-02Rowe Robert ScottPresident & CEOOption exercise17K$0.00$0514K
2026-03-02Rowe Robert ScottPresident & CEOTax withholding10K$88.52$853K497K
2026-03-02Rowe Robert ScottPresident & CEOOption exercise24K$0.00$0507K
2026-03-02Hudson Susan ClaireChief Legal OfficerGrant13$88.52$1K25K
2026-03-02Hudson Susan ClaireChief Legal OfficerTax withholding854$88.52$76K25K
2026-03-02Hudson Susan ClaireChief Legal OfficerOption exercise2K$0.00$026K
2026-03-02Hudson Susan ClaireChief Legal OfficerTax withholding1K$88.52$120K23K
2026-03-02Hudson Susan ClaireChief Legal OfficerOption exercise3K$0.00$025K
2026-03-02VOPNI SCOTT KChief Accounting OfficerTax withholding295$88.52$26K20K
2026-03-02VOPNI SCOTT KChief Accounting OfficerOption exercise1K$0.00$020K
2026-03-02VOPNI SCOTT KChief Accounting OfficerTax withholding520$88.52$46K19K
2026-03-02VOPNI SCOTT KChief Accounting OfficerOption exercise2K$0.00$019K
2026-03-02Schwetz Amy BChief Financial OfficerTax withholding2K$88.52$198K102K
2026-03-02Schwetz Amy BChief Financial OfficerOption exercise6K$0.00$0105K
2026-03-02Schwetz Amy BChief Financial OfficerTax withholding3K$88.52$299K99K
2026-03-02Schwetz Amy BChief Financial OfficerOption exercise9K$0.00$0102K
2026-03-02Duhon Lamar L.President, FPDTax withholding1K$88.52$104K38K
2026-03-02Duhon Lamar L.President, FPDOption exercise3K$0.00$039K
2026-03-02Duhon Lamar L.President, FPDTax withholding2K$88.52$152K36K
2026-03-02Duhon Lamar L.President, FPDOption exercise4K$0.00$038K
2026-03-02Boukalik BrianChief Human Resources OfficerTax withholding430$88.52$38K4K
2026-03-02Boukalik BrianChief Human Resources OfficerOption exercise2K$0.00$04K
2026-03-02Boukalik BrianChief Human Resources OfficerTax withholding374$88.52$33K2K
2026-03-02Boukalik BrianChief Human Resources OfficerOption exercise1K$0.00$03K
2026-02-17McMurray Michael C.DirectorSell8K$89.96$689K3K
2026-02-17SIEGEL KENNETH IDirectorSell3K$89.50$289K0
2026-02-17Schwetz Amy BChief Financial OfficerTax withholding4K$89.69$322K94K
2026-02-17Schwetz Amy BChief Financial OfficerOption exercise9K$0.00$097K

Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.

Planned sales (Form 144)

Newest first. JSON

12 Form 144 notices on file for FLS worth $22.5M at the prices reported; 0 in the last 90 days worth $0. Latest: KENNETH I SIEGEL filed on 2026-06-18 to sell 1,000 shares ($82K) from 2026-06-18.

FiledSellerSharesMarket valueOf outstandingSale fromBroker
2026-06-18KENNETH I SIEGELFormer Director1K$82K0.001%2026-06-18Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-16KENNETH I SIEGELFormer Director1K$81K0.001%2026-06-16Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-15KENNETH I SIEGELFormer Director2K$161K0.002%2026-06-15Morgan Stanley Smith Barney LLC Executive Financial Services
2026-06-11KENNETH I SIEGELFormer Director4K$307K0.003%2026-06-11Morgan Stanley Smith Barney LLC Executive Financial Services
2026-05-26KENNETH I SIEGELFormer Director9K$650K0.007%2026-05-26Morgan Stanley Smith Barney LLC Executive Financial Services
2026-02-17MICHAEL C MCMURRAYDirector8K$687K0.006%2026-02-17J.P. Morgan Securities LLC
2026-02-17Kenneth SieglerBoard of Director3K$289K0.003%2026-02-17Merrill Lynch
2025-12-02Rowe Robert ScottOfficer, Director213K$15.0M0.167%2025-12-02Fidelity Brokerage Services LLC
2025-11-12Duhon Lamar L.Officer2K$112K0.001%2025-11-11Fidelity Brokerage Services LLC
2025-11-05Kirk R WilsonOfficer15K$1.0M0.012%2025-11-05UBS Financial Services Inc
2025-11-04Hudson Susan ClaireOfficer11K$747K0.008%2025-11-04Fidelity Brokerage Services LLC
2025-11-04Amy SchwetzSelf47K$3.3M0.037%2025-11-04Merrill Lynch

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

1 holder reports 5% or more of FLS in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 5.2% of the class (6,657,348 shares), filed 2026-04-29 for an event on 2026-03-31.

FiledFormHolderSharesOf classEvent
2026-05-1513G/Ano. 1Daniel Sundheimparent holding company, individual5.9M4.6%2026-03-31
2026-05-1513G/Ano. 1D1 Capital Partners L.P.investment adviser, partnership5.9M4.6%2026-03-31
2026-04-2913GVanguard Capital Managementinvestment adviser6.7M5.2%2026-03-31
2026-03-2613G/Ano. 17The Vanguard Groupinvestment adviser00.0%2026-03-13
2025-10-1713G/Ano. 1BlackRock Portfolio Management LLCparent holding company2.8M2.2%2025-09-30

13F holders

Tracked managers holding FLS at their latest 13F. JSON

7 of the 30 tracked managers held FLS at their latest 13F, $360.5M in total at quarter-end prices. Fisher Asset Management is the largest at $130.9M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 6 cut.

FundQuarterSharesValueOf portfolioChange in shares
Fisher Asset Management2026-06-301.8M$130.9M0.04%-12K
AQR Capital Management2026-06-301.5M$107.9M0.04%-609K
Starboard Value2026-06-301.4M$106.9M2.36%new
Bridgewater Associates2026-06-30108K$8.0M0.03%-100K
Two Sigma Investments2026-06-3057K$4.2M0.00%-355K
Citadel Advisors2026-06-3018K$1.3M0.00%-68K
D. E. Shaw & Co.2026-06-3015K$1.1M0.00%-47K

Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.

Financials

SEC XBRL, as filed. JSON

In Q2 FY 2026 (quarter ended 2026-06-30) Flowserve reported revenue of $1.17B, down 1.6% from the same quarter a year earlier, and net income of $99.0M (0.77 diluted EPS). In FY 2025 it generated $505.9M of operating cash flow and spent $254.9M on buybacks and $109.6M on dividends.

Debt
$2.14B
Equity
$2.26B
Total assets
$6.32B
Shares outstanding
127,112,780

Quarterly, last 8 quarters

QuarterPeriod endRevenueNet incomeMarginDiluted EPS
Q2 FY 20262026-06-30$1.17B$99.0M8.5%0.77
Q1 FY 20262026-03-31$1.07B$81.7M7.6%0.64
Q4 FY 2025derived2025-12-31$1.22B-$29.0M-2.4%n/a
Q3 FY 20252025-09-30$1.17B$219.6M18.7%1.67
Q2 FY 20252025-06-30$1.19B$81.8M6.9%0.62
Q1 FY 20252025-03-31$1.14B$73.9M6.5%0.56
Q4 FY 2024derived2024-12-31$1.18B$77.5M6.6%n/a
Q3 FY 20242024-09-30$1.13B$58.4M5.2%0.44

Fiscal years, with buybacks and dividends

Fiscal yearEndsRevenueNet incomeOperating cash flowCapexBuybacksDividends
FY 20252025-12-31$4.73B$346.2M$505.9M$70.9M$254.9M$109.6M
FY 20242024-12-31$4.56B$282.8M$425.3M$81.0M$20.1M$110.4M
FY 20232023-12-31$4.32B$186.7M$325.8M$67.4M$0$105.0M
FY 20222022-12-31$3.62B$188.7M-$40.0M$76.3M$0$104.5M
FY 20212021-12-31$3.54B$125.9M$250.1M$54.9M$17.5M$104.6M

Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-21 from the cover page.

What this page is

Flowserve in the regulatory record

Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.

Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.

This page follows Flowserve (FLS), SEC CIK 30625, listed on NYSE, classified by the SEC as pumps & pumping equipment. The cross-market tables live on the short interest and insider transactions hubs.

Source and updates

Short interest
FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
Daily short volume
FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
Fails to deliver
SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
Planned sales
SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-06-18.JSON and CSV
Large holders
SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-05-15.JSON and CSV
13F holders
SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
Financials
SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
Earnings dates
SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-07-29.JSON and CSV
Insider trades
SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-01.JSON and CSV
Company record
EDGAR filing index for CIK 30625Ticker, name and exchange from the SEC's company list, refreshed weekly.
Rate limits
10 requests a minute without a key, 30 with a free key from a free account.

How to read it

  • Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
  • Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
  • Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.

Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.

Other companies the SEC classifies as pumps & pumping equipment

Datasets

Frequently Asked Questions

How much of FLS is sold short?
9,048,534 shares were held short at the 2026-09-30 settlement, 5.6 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is FLS's daily short volume?
On 2026-10-12, 342,313 of the 595,587 FLS shares reported to FINRA were sold short, 57.5% of the day's reported volume. Short volume is a flow for one day, not a position.
Does FLS have fails to deliver?
The SEC's latest file shows 847 FLS shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.
Are FLS insiders buying or selling?
No open-market insider trades were reported for FLS in the last 90 days. The most recent filings are listed below. Latest filing: Hudson Susan Claire (Chief Legal Officer) on 2026-10-01.
Have FLS insiders filed to sell?
12 Form 144 notices on file for FLS worth $22.5M at the prices reported; 0 in the last 90 days worth $0. Latest: KENNETH I SIEGEL filed on 2026-06-18 to sell 1,000 shares ($82K) from 2026-06-18.
Who owns 5% or more of FLS?
1 holder reports 5% or more of FLS in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 5.2% of the class (6,657,348 shares), filed 2026-04-29 for an event on 2026-03-31.
What did FLS report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Flowserve reported revenue of $1.17B, down 1.6% from the same quarter a year earlier, and net income of $99.0M (0.77 diluted EPS). In FY 2025 it generated $505.9M of operating cash flow and spent $254.9M on buybacks and $109.6M on dividends.
Which tracked 13F managers own FLS?
7 of the 30 tracked 13F managers held FLS shares at their latest filing, $360.5M in all. The largest: Ken Fisher's Fisher Asset Management (1.8M shares, $130.9M), Cliff Asness's AQR Capital Management (1.5M shares, $107.9M), Starboard Value (1.4M shares, $106.9M), Ray Dalio's Bridgewater Associates (108K shares, $8.0M), Two Sigma Investments (57K shares, $4.2M), Ken Griffin's Citadel Advisors (18K shares, $1.3M). The table above lists all 7.

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.